morgan



Jan. 2, 1923. 1,440,790

E. C. MORGAN. l MINING AND LOADING MAcHmE,

ORAGINAL FILED Nov. 15, 1915. 8 SHEETSSHEET I 1 zm z 67/4 74 2 N ML; in54? 3 6 j agw Jan. 2, 1923. V

E. C MORGAN. MINING AND LOADING MACHINE. ORIGINAL F| LED Nov 15 1915 8SHEETSSHEET .2

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E. C. MORGAN. MINING AND LOADING MACH NE ORIGINAL F| LED Nov I5, 1915.

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' E. C. MORGAN. MINING AND Logomc MACHINE Omsnm. FILED Nov. 15. 1915v 8SHEETS'SHEET 6 I i il-illlll ar Q55. liym $14M W Jan. 2, 1923."1,440,790

E. c. MORGAN.

Mmme AND LQADINGMACHINE. Omrsmm. FILED Nov, "15'. 191-5. 8 swears-snarl7 Z f y/WM W M Jan. 2, 1923. 1,440,790

E. C MORGAN. Ml NING AND LOADING MACH|NE ORIGINAL FILED Nov. 15, 191

8 SHEETS-SHEET 8 1/85 154 H: W, m, my

Patented Jan. 2, 1923.

* UNITED STATES EDMUND o. MORGAN, OF NEW YORK, N. Y.

MINING AND LOADING MACHINE.

Application filed November 15, 1915, Serial No. 61,481. RenewedSeptember 16, 1919.. Serial No. 324,230.

To all whom may concern-.-

Be it known that l], EDMUND C. MORGAN, a citizen of the United States,residing at New York. in the county of New York and State of New York,have invented certain new and useful Improvements in Mining and LoadingMachines. of which the following is a specification.

This invention relates to mining machines for severing coal or othermaterial from its native bed, and for transferring the severed materialto a position to be loaded into a car or othertransporting means. Theinvention consists in the combination and arrangement of parts setforthin the following specificatiomshown in the accompanying drawings, andmore particularly pointed out in the appended claims.

In the drawings 1 is a side elevation of a complete ining machine inposition in a mine chamber.

Fig. 2 is a top plan view of the machine shown in Fig. 1.

Fig. 3 is a longitudinal sectional view of the machine shown in Fig. 1substantially on the center line thereof.

Fig. 4 is a horizontal sectional view substantially on line H of Fig. 3.

Fig. is a horizontalsectional view looking upward on line 55 of Fig. 3.

Fig. 6 is a central longitudinal sectional view of the operatingmechanism for the cutter and associated parts on a plane at right anglesto the cutter frame.

7 is a transverse sectional view substantially on line 7-7 of Fig. 6.

Fig. 8 is a transverse sectional view substantially on line 88 of Fig.6.

Fig. 9 is a central longitudinal sectional view of the cutter operatingmechanism taken on a plane parallel with the cutter frame.

F 10 is a transverse sectional view on line IlO-10 of Fig. 6.

Fig. 11 is a fragmentary sectional view on line ll ll of Fig. 6.

12 is a transverse sectional view on line 1212 of Fig. 9, the outercylinder not being shown.

13 is a side elevation of the cutter head and associated parts of amodified form of the invention.

*i 14 is a top plan view of the mecha- Fig. 18 is a plan view of thecutter frame.

l'fig. 19 is a fragmentary detail showing the corner construction of thecutter frame. Referring to the drawings, the numeral 1 designates aframe on which the various 0pcrating parts which comprise the presentinvention are mounted. Frame 1 includes a pair of side plates 2, havingtheir lower p013 tions connected by a base plate 3, and having theirupper portions connected by a pair of cross bars 4 and 5, one at eachend of the frame.

Supported by the stationary frame 1, and arranged to swing thereon tovarious operating positions, is a movable frame 6, having side bars 7connected at their bottom edges by a base plate 8, and having a conveyorbed plate .9 extending from one bar 7 to the other, and positioned abovethe base plate 8. The frame 6 is pivotally supported at its rear end onthe cross bar 5 of the main frame 1, as best shown in Fig. 3, by meansof a bearing 10 and apivot bolt 11. Secured to the lower side of theforward portion of the movable frame 6 is a transversely extendingarcuate bar 12 arranged to rest upon the bar a. The bar a, as best shownin Fig. 5, is also arcuate in shape, the center of curvature of the twobars being located at the center of the pivotal connection between theframes 1 and 6. It. is thus seen that the bars 4 and 12 form a track orslideway for supporting the frame 6 as it is swung about the pivot bolt11.. The inner edge of the bar 4, as shown in F 5, is provided with rackteeth 13, and mechanism is carried by the frame 6 provided with a pinionarranged to mesh with these teeth to move the frame 6 relative to theframe 1 in a manner to be described.

Carried by the lower surface of the base plate 8 of the movable frame 6,Figs. 1, 3 and 5, is a motor 14 which drives a pinion 15 (Fig. 5)arranged to mesh with a gear 16 mounted for rotation on a counter-shaft17. Concentric with the gear 16, and integral therewith, is a pinion 18arranged to mesh with a gear 19 rigidly secured to a shaft 20 (Fig.3)carried by a bracket 21 also secured to the lower surface of the baseplate 8. Mounted for rotation on the s ft 20 is a worm 22 (Fig.arrangd'to mesh with a worm gear 23 rigidly secured to the lower end ofthe vertical shaft which is also supported by the bracket 22. rally secured to the vertical shaft 241, perating in an opening'in the bracketabove the worm wheel 23, is opinion arranged to 1 mesh with the teeth 13on the arcuate cross of the main frame 1.

bar ii; carried by the main frame 1. if: clutch 26 is slidably mountedon the shaft 20 and is arranged to clutchthc worm to the shaft 20 forrotation therewith. Ii rod extending transversely of the machine frameis arranged to operate the clutch is provided at each side of thenr'chinc with operating handles 28. it will be seen that by this trainof gearing the operator by moving one of the handles 28, may connect.

the'motor with the pinion and cause said pinion to rotate in mesh withthe teeth for rotation therewith and thus drive the beveled pinioncarried at the end of this shaft, as vshown more particularly in Figs. 1and 5. The beveled pinion 33 is arranged to drive a chain of gearingcomprising the l) and pinionstlri. 35, 36 3. and 38, (i

including the shafts and Q0. The pinion,

38 is rigidly secured to the end of a shaft 41. extendim 6 at the rearend thereof. The shaft il, as shown in Fig. 3, carries a series ofsprocket -wheels d2 arrangeiil to drive a conveyor belt which extendslongitudinally of the frame- 6, and which has its upper run siiipportedby the bed plate 9 and its lower run supported by the base plate 8 ofthis frame. The forward end of the conveyor (+13 traxels over a roller al, mounted for free rot: ion on a shaft 45 which extends transvers ofthe frame 6 near the forward end tllG-QOii. It will be apparent from thedrawing and oescription that the operator, by moving one of the'handlesmay connect the motor A through the train of gearing described, with theconveyorbelt 41-3. to cause this belt to travel over its bed plate 9.

y j Mounted on the base plate 3 of the main frame 1 is a motor 46, Figs.3 and 4-, ar-

transversely of the movable frame ranged to drive a shaft 47 through atrain of gearing 48. Mounted for free rotation on the shaft 4! is a pairof drums 49 and 50, and a pair of clutches 51 and'52 are arranged toclutch the drums 49 and 50 respectively with the shaft 4c? to rotatethere- The clutches 51 and 52 are independently controlled by bars 53and 54: respectively extending transversely of the machine frame, andeach provided with two pairs of levers and 56, one, lever positioneda-t'each side of the machine for 0perating each of the bars andrespectively Secured to the drums i9 and 50 respectively. and arrangedto wind thereon, two cables 5'? and58. These cables pass through pairsof leaders located one at each side oi the main frame 1. for gniding thecables to the sides of the mine chamber. The cables and 58 are providedwith books 60 arranged to be engaged withmine props 61, which may besecured at suitable positions in the mine chamber. Byproperly positioninthe props 61, and by winding cables 5? and on the drums 49 and 50, themining machine maybe moved forwardly in the mine chamber as occasion"requires, or shifted from one sidethereof to the other if at any timesuch shifting becoinesdesirable.

As shown in Figs. 1, Q'and 3,ftl1e sidebars 7 of the movableframe 6extend forwardly, and ai'e provided at their front 'endswith bearingrings 62. Mounted. for rotationin hearing rings 62 as'best shown inFigs, 6 and 9, is a hollow frame oraxleti which is split into twosections along a central plane, as indicated in Figs. 6 and 8, and whichcarries interiorly thereof the' operating mechanism for the cutter andco-operating parts. The hollow axle 63 is provided with a series oftransverse webs 6%, and 66, which are provided with bearii'igs 67 68 and69 respectively, in which are independently journaled a pair of motorarmatures 70 and 71. A shaft 72 of the armature T1 with.

is extended to the left Figs; Gfand 9, and is supported at its end by anadditional timeverse web This shaft 72 has rigidly secured thereto aworm '2'6 and a pinion 75. The worm ,76 is arranged torn'esh with wormgear 76 carried on a transverse shaft 77 which is provided" with asecond worm 78, Figs. 6 and 7, which meshes'with a worm wheel 79 carriedby a shaft 80 extending longitudinally of the axle, 63 near theperiphery thereof, and mounted in a hearing 81 rigid with the aXle 63.On the end of the shaft 80 OppOsit-e'thewOrm wheel T9 is a pinion 82arranged to mesh with the teeth of an internal gear 83, as shown in 6and 10, The internal "gear 83 as shown in 6, is'provided with an offsetportion 84Pwhich fits into the bearing '62, and is rigidly keyedtheretoby 'keys 85. The interior of the oifset portion 84 82 will causethis pinion to travel around ment.

the interior of the gear 83, and since the bearing 81, which supportsthe pinion 82, is

rigid with the axle63, themovemeut of the pinion 82 will cause theentire axle to rotate in the bearing 62. It shouldbe noted that two wormgears are interposed between the armature 71' and the pinion 82, andthat the rotary movement of the hollow axle 63 will therefore be a slowandvery powerful move The worm gears also serve to hold the hollow axlein whatever position it is turned to by the-movement of the motorcomprisingthe armature 71.

The pinion 75 carried by the shaft 72 meshes witha gear 88 mounted forfree rotation on 'ashaft 89.journaled in bearings secured to the. webs66 and 73. A clutch 90, Figs. 6 and 7, is provided on the shaft 89 forclutching the shaft to the gear 88 to cause it to rotate therewith. Theclutch 90 is operated by a rod 91 which extends longitudinally of theaxle 63, and is provided with anoperatinghandle 92 positioned exteriorlyof the axle at one end thereof, Fig. 1. The shaft 89 carries a. pinion93 arranged to mesh with a beveled. gear94 secured to the shaft 95,which is provided with a sprocket wheel 96 located at one end of theaxle 63. In this way the sprocket 91 maybe driven by the armature 71,the movement of the sprocket being controlled by the clutch 90 andits'operating lever 92.

' The motor comprising the armature 70 drives a shaft 97, which has theend thereof adjacent to the end of the co-axial shaft 98. A. frictionclutch'99 is provided for clutching these two shafts together. Theclutch 99 is operated by a rod 100 and a handle 101 mountedon the end ofthe axle 63. The shaft 98 carries a pinion 102, Figs. 6 and 12, whichmeshes with a gear 103 rigidly mounted on a shaft 104, which alsocarries a pin ion 105. Pinion 105 meshes with a gear 106 mounted forfree rotation on a stub shaft 107., which is rigidly carried in abearing member formed integral with the axle 63.-

As shown in Figs. 6, 11 and 12, the teeth of the gear 106 are arrangedto project beyond the periphery of the axle 63 through an openingtherein, for a purpose to be de-- scribed.

Completely surrounding the axle 63 and arranged for free rotationthereon, as shown in Figs. 2, 3, 6 and 9, is a sleeve or hollow cylinder108. As indicated in Figs. 6 and 9, the sleeve 108 is ournaled upon theaxle 63 at each end, but is slightly spaced away from the axlethroughout the greater part of its length. The end of the sleeveopposite the gear 106 is provided'with inwardly projecting gear teeth109, Figs. 9 and 11. The teeth .109 are arranged to mesh with theteeth'of the gear 106, andin this waythe when the screws 112 are inproper position to hold the plates 110 and 111 in place. Fastened toeach of the plates 110 and 111 are two clamping members 113 and 114,held in place bv cap screws 115. For the purpose of severing thematerial to be-mined from themine wall, a U-shaped cutter bar 116 isprovided, the legs of which are arranged to be clamped to the plates 110and 111 by the clamping members 113 and 114. It will be apparent thatthe cutter bar 116 may be adjusted relative to" the cutter head byloosening the'cap screws 115, and sliding the legs of the barbetween theplates 113 and 114. When the bar is properly positioned, the

"cap screws 115 are tightened to hold it rigidly inplace. An endlesscutter chain 117 is carried at the forward edge of the bar 116,

and is caused to travel along this bar by the sprocket wheel 96- over.which the chain passes, as shown in Fig. 9. It will be understood thatthe rotation of the hollow axle 63 by means of the armature 1 71, pinion82 and connecting gearing, will move the cutter bar 116 to force saidbar into the material to bemined. Simultaneously with the feedtwo arms119, one at each end of the hopper,

and two plates 120 and 121 extending longitudinally of the hopper fromone arm 119 to the others The plate 120 extends tangentiallyat one ofits edges from the sleeve 108, and the other edge of this plate meetswith one of the edges of the plate 121 at 122, to form with the arms 119a closed pocket or hopper. As will be seen from Fig. 3, a portion of thewall of the sleeve 108 is removed 1 adjacent the hopper 118. This is topermit access to theaxle 63 enclosed within the sleeve. It will be seenfrom Figs. 6'a'nd 9 that the ends of the sleeve 108 co-operate with thetransverse walls of the axle 63 and with inwardly projecting ribs 123carried,

the parts in place relative to one another hy the sleeve 1.08 to formclosed grease pockets in which the gearing for: drivingthe various partsoperates.

=Extending hetweenxthe side Walls 7, .-and pivotally mounted thereon-at=,124e, is. a :chute or slideway having sidewalls 126yand bridgingthe spacehetween the end-.ofwthe conveyor chain e landcthe upperyportionof the sleeve 108. The chute '125i'h2lSfii3Sf0fward edge :12? vhevele'dtosfit closely .against the periphery of the sleeve 108 as showninlilig.

The operation of the (parts :thus iar ..de scribedmaygnouw'heounderstood. :The machine .is'placed in a minechamher, asshown in '1, 2. 211141 ihcandhopper 118 land the utter. ban -116'hcingswung in a: elockwiserdi- -ectio:we'd.inathe:.dnaavings.,inntil=the portion oi"-thehopper:1-18rc0ntactswith the chute .125 :lifting the chute;.about11its pivot 12%, rand permitting theihopper. .tohoccupy. a.tpositionibetween the sides 7 f 1 the movable aframe 6. :The cutter bar116,.wi'l1 thenwoccupyposition. just back ofzthat .occup-ied' by the;portion 122 01; the. hopper 118 ss-showndnt-Eig; 1. Ziththeflipartscthus -ositioned thepanmature '71 will beener ized P a a todrive the: chain; 117. .flIlCLtOKIOtfltBi the axle 63 to r-feedzthecutterxhar:116yinto: thematerial vto he iminedethus; forming a ,kerf:128, a and severing: a section iof. material 129 from the wall.Ofttllfilllil'lfi, .aszsh'own in Fig. 11. theiaxle;63 rotates, it. willca-rryythe. stub shaft 107 and! the .gear 106: -t'-LI011I1Cl'2Witl1 it.If. the: sleeve 108 andnthehoppera118.;remain stationary; this williCElllSG :a rotation of; the train of gearing. connected: with the gear106. The rotationolith-is gearing will cause-a certain amount/of drag,.due to .thezfr ictioniof a the: gearing upon :the sleeve: 108,; tending.to rotate thev sleeve in unison with-.the cutter in Fig. 1, Where it isstoppedlhvcontact "with the section of severed coal; Ituthesdrag causedby the -gearing" alone. is not .zsuflicient the clutch' 99-may be:locked, and theresistance of theiarmaturel to rotate he .iadded -to thatof the train of gearing. As .thecutter I 116. oontinuesits operation,the drag. onthe gear 1106 will continue to holdthehopper 118innposition. After the cutter .116 has reached its uppermost positionand completely -severed the section of material 129' from the mine wall,the-motor 71 is stopped,

and the cutteris held inposition'by; the wormgearingby which it isdriven. The motor'70/is now. actuated, and the clutch/99 thrownintorotate the gear 106. lSincezithe GO- shaft 107 011111 111011? thegear .106 is; mounted is held from rotationcbyrthe :worm gear by whichthe hollow axle163, is driven, rotation i of the 'gear J 106 wi1l cause:the sleeve 108 to .EGVOLVGILELbOIlt .the 332(16163, :.-.and' carry; the,g hopper 118 upwardly a "counterclockwise .heing made sideov side 1 thethe chamber.

previously described.

has secured to its forwardedge a-slideway zmade up of straight-sections132' and corner -har 116. 'Thisusuallyiwill besu'fficient, to bringthehopper 118 into theposition shown a complete .ring-which-has. thegroove 135 ;diiection,.,as viewed-in Figs. 1 andfi. This movement ofthekhopperwill orce the sevcred material upwardly "before it and throughthe loopy-formed Eloy the cutter bar 116 onto the-chute 125. {If fthe(material 70 breaks apart it will beheld from escapeby the "presence orthesleeve 108 and by the hopper 118. When the material-isdeposited uponthe. chute 125;it will slide downwardly and haelzwardlyonto theconveyor143 which .driven by the -motor ,14 in the manner previouslydescribed, ;to transfer the ma- .tterial totherear end of thein'ach ne,where it isdischargedinto' scar 130 carried on a track 131.

A. .1. .z.:iine,cl iainher is it ofithree cuts i .h' To position tnemachine for making these cuts, the n'icVahlerrams-G is swung lateraliyabout the .pivot 11 to bring thecutter bar 116,111 the proper positionfor making the various cuts. This swinging movement is accomplished by.nieansuofthe motor 1e and the pinion 25 inthema-nner filter each;series of cuts has been m'arleythe machine is moved forwardly intoposition tomake asecon'd series by means of. the cables 57 and 58 andtheir co-o.perat1ng meihanism.

,Since .the

movable frame 6 STViIl8gttlO0llintL pivot locat- 1 ed substantially therear end otthe frame, theglateral movement .ofthe frame will not disturbthe. properv position of the discharge end of. the conveyor 13. relativeto the car130. 500

The con truction otthe cutter har and chain will best be understoodhyreference to Figs. 16.:to 19. inclusive. The cutter bar 116 as showninFiglS, is.-,.U-shaped, and

sections 138. The slideway is secured to the cutter bar 116byvi'ivets'13 1, and isprovided with a groove :135 for guiding the.cutter chain 117 The slideway is made insections as shown tofacilitate.theprocessof construction. Thegroove-135 may be formed instraight sections on a milling machine, and the corner sections 133 maybe formed from machined therein on lathe. T he chain 117 is providedwithlinhs136, having forwardly .projecting'bit sockets 13? carrying hits 138 for cutting the material. to he mined. Guide lugs 139 extendrearwardly from the links J. 136,vand; fit into the groove 135. The lugs139 and thegroove are given tworight angle turns, as shown in Fig. 17,to prevent lateral play of the chain.relativetothe cut-- ter bar. Springpressed friction devices 140 iLIGwPIOVlClQCl' for holding the hits 138111 'place, andispring clips. 141 arezarrangedfor .detachably holdingthe links ofthechain tolines, fofholding the hopper 118 in poi to meetthe sect-ion of severed, material,

cutting mechanism, and a conveyor in posiform of cutter head used inmines where the coal. breaks up readily. In this form of cut ter headthe severed coal iscompletely enclosed, so that t ere no opportunity forfinely broken par rice to escape, is shown in Fig. 13. the hopper. 118made deeper than in the form shown in l. and the legs of the cutter bar116 provided on their lower edges with which are arcuato overlap thesides of the construction the sides 01 i cut are pletely closed. and allthe lineparticles of coal are prevented from escaping. lof the drawings,the lines of the rut made in the material to be mined are r coresentedby broken lines. In Fig. 15 is sh n a pivoted stop member This meznbvmay be thrown into inoperative position shown in broken hnes 1n the r1g. 13, or n be swung into the position shown 1 prevent the hopper fromswinging don: wardly and. barkwardly during t e cutting oocration underthe weight of detached portions of the material in the drag caused bythe train of gearing connected the gear 1.06 is insufficient to hold thehopper in place while the cutter is being operated.

V? hat I claim new, and osire to "ecu 'e by Letters Patent of the Unitedmates is i '1. 111 a mining machine, the combinatirm with core-cuttingmechanism having an unobstructed core opening therethrcugh, of means foroperating said core-cuttingmechanism including upward. swin ing feedingmovement thereof about a sub nrialhori- PliOlIttl axis. means sepa: andin" pendent from said core-cutting mechanism for moving the corefronithe position it occup id in its native bed imwardly and bachtl'iroun theopening said a tion for receiving the material thus moved. from the minewall.

in a mining machine, the. combination. .i owe-cutting mechanism havingan unobstructed core opening thercthrough, of a hopper for receiving thecut material, means for operating said core-cutting mechanism includingup ard swinging feeding move ment thereof independently of movement ofsaid hopper, and means for swinging said hopper upwardly to dischargethe cut material to a position from w iiclfit may be trans ported.

3. Ina mining machine, the combination with core-cutting mechanism, of ahopper having its wall shaped to conform to the core cut by said corecutting mechanism. means for supporting said hopper for movement intoposition to bring its walls adja coin-- core, and means for moving saidhopper to discharge the :jlislodged material therefrom. 4. In a miningmachine, the combination with a core cutter having an unobstructed coreopening therethrough and comprising chain cutting mechanism, of meansfor operating said core cutterto cut a core in a single feedingmovement, a hopper for receiving the material severed by said corecutter, and means for moving said hopper and said core cutterindependently of each other but'about a common axis of arcuate movement.1

i 5. In a mining machine, the combination with cutting mechanism forsevering ma]- terial to be mined by forming a kerf in said material, ofa hopper having walls arranged to conform to the kerf made by saidcutting mechanism, means for supporting said cutting mechanism and saidhopper for arcuate movement on the same axis, and means for swingingsaid hopper upwardly about such axis for carrying the materiall severedby said cutting mechanism into a position from which it may betransported. 6. In a mining and loading machine, the combination withcore-cutting mechanism having an unobstructed core opening therethrough,of transferring mechanism having a receiving portion located above theaxis of movement of said core-cutting mechanism, means for moving thesevered material upwardly from the position it occupied in its nativebed into position for discharge onto said receiving portion of saidtransferrin mechanism, and means for operating saio core-cuttingmechanism including upward swinging feeding movement thereof on its saidaxis independently of upward movement of said discharging means. H I '7.lna mining and loading machine, the combination with a supporting frame,of core-cutting mechanism mounted to swing on a substantially horizontalaxis on the forward end of said frame, a conveyor extendinglongitudinally of said frame, a hopper mounted on said frame in posltionto receive dislodged material of said core, means for operating saidcore-cutting mechanism including upward swinging feeding movementthereof while said hopper remains relatively stationary, and means for.swinging said hopper upwardly about the horizontal axis of saidcore-cuttingmechanism to discharge the dislodged material in said hopperonto the forward end of :said conveyor. 8, In amining machine, thecombination with a supporting frame, of cutting mechanism supportedatone end of said frame, a slideway carried by said frame and extendingrearwardly and downwardly from. said cutting mechanism when the latteris in its upper position, means for operating said cutting mechanismincluding; feeding movementj... thereof to such uipper' position,- andmeans" mounted for movement independent ofgaidicuttingj mechanism forreceiving the severed material and discharging. the same onto" sir-idslidevvay;

9111i mining machine, the combination with a" supporting frame; oi? aconveyor mounted on said frame to extend" longitudinally thereof a'cutte1'* l1ead carried by saidframe, I a" slideway pivotally connectedto said frame" and movable into position to budgethe'space betweenapart: of said cutter head and the forward end of said con veyor,and-means separate and independent from said cutter head over said slideway onto said co-nceyer.

10. In a miningmachine. the combination head over said slide onto saidconveyor mechanism;

111 In. a" ininingunachiiie, the" combination Withia supportingirame',ofconveyer mechamoii'ntedf thereon, a cutter head, a bridge in slidingengagement with said cutterh'ead, means for supporting said outter headon said frame for 'movement relatively to said bridge, and means forraising materiallto discharge the samerearwardly over said'bridge ontosaidconveyer mecha nism.

12, In a mining 'ancl loadingmachine, the combination with a supportingframe, of conveyer mechanism thereon, a drum moire ed on' the forwardend of said supporting; fian'ie for partial rotation on a horizontalaxis, core-cutting mechanism: mounted on said drumand having anunobstructed core opening therethrough, and means mounted to l'i'a've aswinging movement on substantially'the same axis as said barrel frame toather the dislodged material and discharge 0 same rearwardly over thetop of said d'ruin onto said c'on'v'ey'er mechanism.

13. In mining'machine, a frame, conveyorme'cl'ianismoarriedby saidframe,a rocutter, head carried by said frame, loop'cuttercarriedby said cutterhead and havihg;anunobstructed core opening theret'lirough and movableabout a horizontal o Sever coal from its native bed, and

axis t I m'ea movable about the axis of said loop l 'tter' torefce'ivethe severed material, raise 1tfi11to a positi n. above a partof said cutter head and discharge it rearwardly from said ctit'ter headonto said conveyor mechanism. ll lbI lfaim lIll iIg machine, a frame, aconv'e o carr fd by' said.. fi'fame, a rotary cutter carried by saidframe, a chute mounted has ' from sa'i'd slideway fo'r'discharg'ingmaterial for di'schargiiig material from said cutter on said frame tobridge the space between the upper portion of said cutter head and saidconveyor, a cutter for severing materr from its native bed, and hopperfor receiving said material and arranged to swing; upwardly about ahorizontal pivot independ ently of movement of said cutter head todischarge said material rearwardly over the top of said cutter head ontosaid chute.

155. In a mi n'iuchine, a frame, a c'* veyor carried by said frame, arotary'cu head mounted on 'l e forward frame, a chute pi frame andarranged to bi" tween the forward end of said con eyor tion of saidcutter head, a loop cutter cu tried by said cutter head for StifUl'llih' material from its native bed, a hopper shaped to cor.- torm tothe severed material and movabl into position to receive low ortion thespace r [he said material during the cutting operation said cutter, andmeans for swinging said hopper upwardly about the axis of said out-- terindependen y of movement of ter head to raise the severed mater: 1 abovesaid cutter bead and to discharge said material through the opening"formed by said cutter onto said chute.

16. In a mining in chine, the combination with a supporting Lame. oitacutterhead carried by said frame, a hopper rotatable into position fordischarging i'z'iaterialrearwardly there-lam. and a chute pivota mountedon said frame in position to be the path of movement of said hopoer andto be tilted thereby to a greater angle of elemounted on sair. cutterhead and arranged to rotate about the pivotal center of said cutter andto discharge material severed by said cutter rearwardly over said cutterhead onto said chute. and means for swinging: aid hopoer into a oositionnormally artially occupied by said chute.

19; In a mining; machine, the combination with a supporting; frame. ofcutting: mechanism comprising a rotary axle carried by 1 said frame, asleeve rotatably mounted on the ex rior of said axle. and a devicecarriediby said sleeve for cemoving the material severed hy saidcutting; mechanism.

20. In a mining machine, the combination with supporting frame, of anaxle mounted for rotation in said frame, a cutter carried by said axle,means for operating said outter including arcuate feed movement thereofand arcuate movement of said axle, a cylindrical. sleeve pivotallymounted on said axle and sm'rounding the same, said sleeve extendingsubstantially the fulllength of said axle, and a hopper carried by saidsleeve for movement independently of the movement of said axle inposition to receive the materialsevered by said cutter. 1

21. In a mining machine, a frame having two side members, a hollow axlejournalled in said side members, a cutter carried by said axle mechanismmounted within said axle for operating said cutter, a sleeve surroundingsaid axle, means carried by said sleeve for moving the material severedby said out ter, and mechanism located within said axle for rotatingsaid sleeve relative thereto.

22. In a mining machine, a frame, a hollow axle journaled for rotationin said frame, a cutter carried by said. axle, mechanism located withinsaid axle for rotating said axle and said cutter and adapted to holdsaid cutter to prevent rotary movement thereon, a device rotatablymounted on said axle for moving the material severed by said cutter,

and means within said axle for rotating said last mentioned devicerelative thereto.

23. In a mining machine, a frame, a hollow axle rotatably mounted insaid frame, a cutter carried by said axle, a hollow sleeve journaled onsaid axle, a material moving device carried by said sleeve, andindependently operable motors mounted within said axle for rotating saidaxle and said sleeve independently of one another.

24.. In a mining machine, a frame, a hol low axle rotatably mounted insaid frame, a Ushaped cutter bar carried by said. axle, an endlesscutter mounted on said cutter bar, a sleeve journaled' on said axle, ahopper carried by said sleeve having its walls movable into a kerfformed by saidcutter, and means mounted within said axle for rotatingsaid sleeve and hopper to cause said hopper to transfer material severedby said cutter to.

worm. gear by which said axle is held fromv rotation other than by saidmotor, means rotatable about said axle for movingmaterial severed bysaid cutter, and mechanism mountedwithin said axle for rotating saidmaterial-moving means relative to said axle.

26. In a mining machine, a frame, a hollow axle journaledin said frame,a sleeve concentric with. said axle and journaled thereon, a cuttercarried by said axle, means carried by said sleeve for moving materialsevered by said cutter, and mechanism mounted within said axle forrotating said sleeve and axle about their common axis independently ofone another.

27. In a mining machine, a frame, a hollow axle rotatably mounted insaid frame, a cutter carried by said axle, a stationary gear concentricwith said axle, a pinion carried by said axle ecoentrically thereof andarranged to mesh with said gear, a motor operatively connected with saidpinion through a chain of gearing arranged to drive in one directiononly, a sleeve journaled on said axle, a' device for moving materialsevered by said cutter carried by said sleeve, and a second motormounted Within said axle for rotating said sleeve relative thereto.

28. In a mining machine, an axle, a cutter carried by said axle, meansfor rotating said cutter and axle, a device rotatable relative to saidaxle for receiving material severed by said cutter, and a train ofgearing connecting said axle and materialer'eceiving device and arrangedto be driven by relative movement of said axle and device, and to thusoffer resistance to such relative movement whereby the rotation of saidaxle will tend to rotate said material-receiving device simultaneouslytherewith.

29. In amining machine,'a rotary cutter for severing material to bemined, a device movable relative to said, cutter for-receiving saidmaterial, and yielding mechanism tend-ing to rotate said receivingdevice with said cutter whereby said receiving device is held stationaryin operative position during the rotation of said cutter and ready tomove when said cutter has completed its out.

"'30. In a mining machine, a rotary cutter, a device for receivingmaterial severedby said cutter, and a train of gearing arranged to bedriven by relative movement of said receiving device and cutter wherebythe inertia and resistance of said gearing will oppose such relativemovement and cause said receiving device to be yieldingly held inoperative position during the rotation of said cutter.

31. In a mining machine, a cutter, a device for receivingmaterialsevered by said cutter, a train of gearing arranged to be driven byrelative movement of said outter and material-receiving device wherebythey inertia and resistance of said gearing will tend to prevent suchrelative movement and to hold said receiving device in operatingposition duringv the rotation of said cutter, and a motor fordrivingsaid gearing to cause said material-receiving device to move thematerial. severed by said cutter into position from which it may betransported. i

32. In a mining machine, a. frame, a sleeve journaledfor rotation insaidframe, a hopper carriedby said sleeve, and means; located withinsaidsleeve for, rotating .thelatter and the hopperto move materialreceived th reby.

upwardly into position tov be discharged, rearwardly over said sleeve.

3.3:. In. aminingmachine, a frame, a sleeve journaled for, rotationin.said frame, ahoppercarried bynsaid. sleevecomprising a rear wallarranged. tangentially to said, sleeve, atone edgethereof, a front wallconcentric with said sleeyeand meetingsaidrear ,wall at the edgethereof-opposite that which is tangentto said sleeve, and arms normal tosaid. sleeve and arranged to form endwalls.v for saidhopper.

34;..In a, mining, machine, the combina; tion with a, supporting-frame,of anaxle, journaledion. saidv frame, a, hopper carried, by, said axle,and, rotatable therewith, and means. carried wholly bywsaidaxle for mowingitself andsaid hopper in anarc relatively. tosaid. supporting frameto.,1nove, a loadin said, hopper to discharging, position,

35 111, a mining machine, a framma cutter, rotatably mounted on; saidfram for forming an, arcuatecut, inv the material to bemined, and, a,hopper rotatable in said frame: about the axis of, rotation of saidcutter independently-of movement of said cutter bodilyand, having,anenterior wall curred to ,conform,,to the curyature of said am ate t anhav an,v nte or wall e e ding r nefi sa f: he xter o Wa l. o. a pointdiaeent he isnt r tation f said cutter. andhoppen 1 mining machine-,7,a. e e r, forming anarcuatecut in the material to be, mined to sever acore of saidmaterial, from its native bed, mechanism for afterward aiins ai v m er al upwardly e h p s on. ccupie n ts. at ve d o positi om hch t; b anspo ed and, means for enclosing said severed ma terial duringsaid operation.

3. In a mining: la hinetlwcombin t o h ks r utti g me han m, f. mean f rp ating h ameinc di s e d n m a is he e i a. opperounted r nQ mentindependently of the feeding moyement he kerfr t na mechanism nd h inWalls o ming. a Pocket. ar ang d t nt ke i onmed by. aid. ker ut nla m can m, o en l se th material. uring h c nt uanc f, ese w n op r on and ga d v carried; y ai k rf'cut'tins e an sm d; laansedf o,cooper te W tlrh al f. i ornet, to; enclos he mat r al t t de du ing e comple ion eiher-f d n m r meat f said uttin mechan sm.-

In. a mi l ng: machines Q te head .091 re tte arrie by said hea an rotaab e hs ze i iq f m, an ar uat re. ofmined'material, a hopper having aclosed .v bot om nd a l hanei o conform o th material severed by saidcutter, means for moving the walls of said hopper into the kerf formedby said cutter whereby a portion of the material severed by said cutteris enclosed in said hopper, and guards car ried by, said cutter arrangedto co-operate with said hopper for enclosing the entire section ofmaterial severed by said cutter.

39. In a mining machine, a cutter, means for receiving the materialsevered by said cutter, mechanism operated upon feeding movement of saidcutter for yieldingly holding said material-receiving'means inoperatiyeposition during such feeding movement of said cutter, and asupplemental device for positively holding said material-receiving meansinsaid position.

40, In a mining machine, a core cutter, a hopper; for receiving thematerial directly from the position thereof as left by said outter, anda stop movable into operative relation with said hopper to hold saidhopper in material-receiving position.

41, In a mining machine, a cutter. a hopper for receiving materialsevered by said cutter, guards carried by said cutter and arranged tooverlap the sides of' said hopper and to co-operate with said hopper toenclose the material severed by said cutter, and means for swinging saidhopper upwardly between said guards for discharging said material.

42. Inca mining machine, the combination with a supporting frame, of, asupplemental framepivotally connected to said supporting frame at therear end of the latter, an arouate sliding connection between saidsupplemental frame and the forward end of said supporting frame,core-cutting mechanism having an unobstructed core opening therethroughand mounted on the forward end of. said supplemental frame for up anddown movement on a horizontal axis, means for operating saidcore-cutting mechanism including feedthereof upwardly on such horizontalaxis, and loading apparatus mounted on said supplemental frame inassociation with said core-cutting mechanism for taking the material outby said core-cutting mechanism and moving such material automaticallytoward loading position rearwardly of said supporting frame, saidloading apparatus comprising an endless conveyer extendinglongitudinally of said supplemental frame with its forward portionmovable laterally with said core-cutting mechanism and withits rear endmaintained in substantially the same position at all times during theoperation of the machine to deliver the dislodged material to a mine caron a track back of the machine.

48. In a mining and loading machine, the combination with a, supportingframe, of a supplemental frame pivotally connected to the, rear end ofsaid supporting frame and operation fron'i the forward portion of saidsupplemental frame toward the rear end thereof, core-cutting mechanismhaving an unobstructed core opening therethrough and mounted on theforward end of said supplemental frame for up and down movement onsubstantially lid" means for operatig said co c in Mechanism includingupward feed th on such horizontal axis, and. means etc-acting with saidcore-cutting mechanism to deliver dislodged ma erial to said endlessconveyer in the vari us positions of lateral adjustment of saidsupplemental frame relative to said supporting frame while the rear endof said conveyor remains in substantially the same position fordelivering dislodged material to amine car on a track back of saidsupporting frame,

44. In a mining and loadin machine, the combination with a base frame,of a supplemental. frame pivotally connected to said base frame andmounted thereon, an endless conveyer extending longitudinally of saidsupplemental frame and having a discharge position near the pivotalconnection between said supplemental frame and said base frame, apivotal support between said supplemental frame and said base frame toen able said supplemental frame to be adjusted tovarious angularpositions relative to said base frame, core-cutting mechanism having anunobstructed core opening therethrough and mounted on the forward end ofsaid supplemental frame for feeding movement on a substantiallyhorizontal axis, means for operating said core-cutting i'nechanismincluding upward feed thereof on such horiuontal axis, and. apparatusfor gathering the dislodged material in advance of said supplementalframe and delivering it to said conveyer for transfer toward leadingposition. A 415. In a mining and loading machine, the combination with amain frame, of a supplemental frame pivotallyconnected to said mainframe and mounted on the latter for lateral movement relatively thereto,conveyor .snechanism entirely mechanical for transporting dislodgedmaterial from the front portion of said supplemental frame to adischarge position near its pivotal. connection with said frame,core-cutting mechanism having an unobstructed core opening therethroughand mounted on the forward end of said supplemental frame, apparatusalso vmounted onthe forward end of said supplemental frame for gatheringcut material and delivering it to the forward end of said transportingmeans, and means for moving said supplemental frame laterally about itspivotal connection on said main frame to adjust the position of saidgathering apparatus in an are relatively to said main frame.

l6. In a mining and loading machine, the combination witha supportingframe, of a supplemental frame pivotally connected to the rear portionof said supporting frame, a conveyer extending longitudinally of saidsupplemental frame and movable as to its forwardportion laterally withsaid supplemental frame along an arc with said pivotal connection as acenter, core-cutting mechanism having an unobstructed core-openingtherethrough and mounted on the forward portion of said supplementalframe, and means associated with said core-cutting mechanism for takingthe dislodged material from its out position and delivering it to saidconveyor.

$7. In a mining and loading machine, the combination with a main frame,of an elongated supplemental frame pivotally, connected to said mainframe, means for supportingthe forward portion of said supplementalframe for adjustment in an are on said pivotal connection as a center,means for moving said supplemental frame laterally on said supportingmeans about said pivotal connection, core-cutting mechanism having anunobstructed core opening therethrough and mounted on the forwardportion of said supplemental frame, and loading apparatus for removingthe dislodged material from the mine wall and delivering it to adischarge position near said pivotal connection.

4.8. In a mining and loading machine, the combination with amainsupporting frame, of a supplemental frame mounted thereon,a pivotalconnection between the rear portion of said supplemental frame and therear portion of said main frame, a slide way on the forward portion ofsaid main frame for supporting said supplemental frame for adjustment inan are about said pivotal connection as a center, rack and pinionmechanism for moving said supplemental frame on said slideway, a motorfor operating said rack and pinion mechanism, core-cutting mechanismhaving an unobstructed core opening therethrough and mounted on theforward end of said supplemental frame for feeding movement relativelythereto, and loading apparatus mounted on said supplemental frame tomove bodily in an arc therewith and comprising an endless travelingconveyer extending longitudinally of said supplemental frame todischarge position near said pivotal connection.

49. In a mining and loading machine, the combination with an elongatedframe, of core-cutting mechanism having an unobstructed core openingtherethrough and mounted on the forward end of. said frame 130 forfeeding movement relatively thereto, a pivotal. support near the otherend of said frame, an endless traveling conveyer ex tendinglongitudinally of said frame and arranged to transfer materialrearward'ly along said frame, a slideway curved about said-pivotalSupport as a center for supporting the endof said frame opposite saidpivotal support, motor and gearing for moving said frame on saidslideway about said pivotal support to bring said core-cutting'mechanism into various operating 0- sit-ions ina mine chamber, andmeans associated with Said core-cutting mechanism for gathering the cutmaterial and directing it onto said-conveyer.

50. In a mining machine, an elongated frame, a pivotal support for oneend of said frame, a conveyor extending longitudinally of, said frame, acutter carried by said frame at the end thereof opposite said pivotalsupport, a hopper movable independently of bodily movement of saidcutter arranged to co-operate with said cutter and to raise the materialsevered thereby upwardly and discharge it rearwardly onto said conveyer,and a slideway for supporting the end of said frame carrying said cutterand arranged to permit lateral movement of said frame about said pivotalSupport to bring said cutter into different operating positions.

51. In a mining machine, the combination with asupporting frame, ofmeans for transferring material, from one location to another, saidtransferring means being mount ed on a horizontal axis in fixed relationto said supporting frame, a chute pivotally connected to said supportingframe on a horizontal axis in fixed relation to said frame, said chutehaving a sliding engagement at the free end thereof with saidtransferring means, and means mounted on said supporting frame in fixedrelation thereto for receiving material from said chute.

52. In a mining machine, the combination with a supporting frame, ofmeans for lifting material to a predetermined position, said liftingmeans being pivoted to said supporting frame in fixed relation thereto,a device for scraping material from Said lifting means when the latterreaches said predetermined position, said scraping device being. pivotedto said supporting frame on an axis in fixed relation thereto, and aconveyermounted on said frame in fixed relation thereto in position forreceiving material from said scraping device and transferring suchmaterial to loading position. I

53. In a mining machine, the combination with a supporting frame, of'ascoop pivotally mounted thereon a substantially horizontal axis, adevice pivotally mounted on said supporting frame on a substantiallyhorizontal axis in fixed relation to said frame and in position forengaging a wall of said scoop to scrape material therefrom when saidscoop reaches a predetermined position, and means for operating saidscoop to gather material and deliver the same to said scraping device,said scraping device being then in posi on to direct material from saidscoop toward loading position.

5-1. in a mining machine, the combination with a scoop having a curvedportion near the axis of rotation and a wall extending outwardlytherefrom, of a conveyor, and mechanism intermediate said conveyor andsaid scoop engaging the curved portion of said scoop until the latterreaches a predetermined position and then scrape the ma terial from sa'dwall of said scoop.

55. in a. mining machine, the combination with a scoopsomewhat Eishapedin cross section, of means for operating said scoop, and a deviceengaging an intermediate portion of said scoop to direct materialtherefrom when said scoop reaches unloading position.

56. in a mining machine, the combination with a supporting frame, ofhopper pivotally connected on a transverse axis for movement in advanceof said frame, and an abutment pivotally connected to the lower forwardend of said frame independently of said hopper by being disconnectedtherefrom but adapted to be moved into position for engaging the lowerrear end of said hopper to hold the latter in predetermined position.

57. in a mining machine, the combination with supporting framework of ahopper having side walls, telescoping extensions for said side walls,means for moving said extensions relatively to said hopper to effectlengthening of the walls, and means for moving said hopper relatively tosaid extensions.

58. in a mining and loading machine. the combination with a supportingframe, of core-cutting mechanism having an unobstructed core openingtherethrough mounted on said supporting frame for feeding movementrelatively thereto on a substantially horizontal axis, a deviceconnected to said frame in position to receive dislodged material fromsaid core-cutting mechanism, and means for moving said receiving deviceto discharging position independently of move- ,ent of said core-cuttingmechanism.

in a mining machine, the combination with a supporting frame, of a scooppivotally mounted on the forward end of said frame, means for operatingsaid scoop to: gather material in advance of said frame and lift it fordischarge rearwardly from said scoop, and a chutepivoted to said supporting frame and extending to a position for receiving the materialfrom said scoop.

60. In a mining machine, the combination with a supporting frame, of ascoop pivoted thereto, means for operating said scoop to said frame andhaving a fixed relation to the pivotal axis of said scoop and bei gperinanently in parallelism with the L axis, the forward free end ofsaid chute be ing supported in position to 1' ceive material directlyfrom said scoop terial slides out of the rear end of such scoop,

61. In a mining machine, the combination with a scoop, of a frame forcarrying the same, guard mechanism extending vertically to court withsaid scoop to prevent material from falling laterally from the side ofsaid scoop, means for adjusting the upri ht position of said guardmechanism rela ive to said frame and relative to said scoop, and meansfor operating said scoop to gather material and discharge the sametherefrom.

62. In a mining machine, the combination with a supporting frame, ofscoop pivoted thereto, a guard plate extending upward from one side ofsaid scoop directly above .the latter, means for adjusting the uprightposition of said guard plate, and means ior 7 operating said scoop to'gather material and discharge the same therefrom. I

63, In a mining machine the combination with a supporting frame, orascoop mounted thereon, upright gui l mechanism extending upwardly abovethe walls of said scoop for preventing material from spilling from saidscoop, means for adjustahly holding said guard mechanism in uprightposition relative to said and means for operating said scoop. a

64. In a mining machine, the combination with a supporting frame, of ascoop pivoted to the forward end thereof, spaced-apart guard platesclosely associated with the sides of the scoop and extending upwardlyfrom the outer lateral surfaces such scoop sides, means for moving thesaid guard plates upwardly beyond the initial position of said scoop andholding said guard plates stationary relativel to said frame, and meansfor operating said scoop to gather a load in advance of said frame andmove said load upwardly between said guard plates for dischargerearwardly between the upright planes of said. guard plates onto saidframe.

65. In a mining machine, the combination with a supporting frame, ofconveyer mechanism mounted on said frame, corecuttin; mechanism havingan unobstructed coreopening therethrough and pivotallyi nounted on saidframe to swing on a substantially horizontalaxis, and means alsopivotally mounted on said frame in position to receive the severedmaterial and raise it to a positionabove the said axis of saidcorecutting mechanism and discharge said ma- 0 amed terial from saidreceiving means onto s conveyor mechanism.

66. in. mining machine, the combination with a supporting frame, of achute pivotally mounted on said frame on an having a fixed relation tosaid frame, a scoop pivotally connected to said frame on an axis havinga relation to said frame and in parallelism with the axis of said chuteandspaced from the chute axis, and means for operating said scoop togather material and discharge it rearwardly onto said chu e 67. in amining machine, the coinhinat' with a supporting frame, of a chuten'iounted thereon for movement r latively thereto, scoop mounted onsaid. frame pivotal movement relatively thereto on an axis liar ing afixed, relation to said frame, and means for operating said scoop togather material and discharge it out of the rear end thereof bypermitting such material to slide by gravity from said scoop onto saidchute while said scoop lifts th forward end of said receiving chute butmaintains delivery relation with said chute.

68. in a mining machine, the con'ibination with a supporting frame, ofscoop pivoted at the forward end of said frame, chute mounted. on saidframe to have a sliding engagement at its forward free end with there-orwall of said scoop, means for opersaid scoop, to gather material inadvance of said frame and discharge it rearwardly to said chuteirrespective of the elethe mate 'al from said chute and transferringsuch material toward loading position.

69. n a mining machine, the combination with'a supporting frame, ofscoop pivoted at the forward end of said frame and having a curvedextension near the pivotal axis of said scoop, a chute pivoted to saidframe and having its forward free e' d in scraping relation to thecurved extension of said scoop, means for operating said scoop forgathering material in advance of said frame and delivering it to suchchute out of the rear end of said scoop near such curved extension andwhile the forward free end of said chute remains inscraping relationwith said scoop ex vnion, and a conveyor mounted on said ""ame inposition for r ceiving the material from said chute and transferringsuch material toward. loading position at the rear end of frame. 7

70. In a mining machine, the combination with a supporting frame, of ascoop pivoted at the forward end of said rame, a chute pivoted to saidframe at its upper portion and having a free forward end for engaging awall of said scoop to scrape material there from when said scoop reachesa 'predeten mined elevation, the forward end of said chute resting onthe scoop by gravity, and

osta ial aline -:iehver -J of the in chute *pted to i, track back oisaid emental frame p'rotally r-ar end of said main supplemowing;

e ear met r carried Within the i -chain-core cutting m chanism having;an unobstructed core-opening therethrough and connected to the innerdrum to more in an arc therewith on the axis of rotation of seid innerdrum, power transmission mechanism connected to said motor for actuatingsaid core-cutting mechanism, additional power transmission mechanismconnected to said gear for effooting the feed of said core-cuttingniechanism by moving such inner dr or in an are relatively to saidspaced-apart lates, a hop per comprising spacedort side Walls, a forwardcurved well adapted to enter the l: back of the core, a rear Wallextending to the outer drum, an additional motor Within said inner drunnpower transmission m chenism between said additional motor and saidouter drum for rotating said outer drum relatively to said inner drum tomove said hopper from its lower receiv'ng position at the floor of minechamber to its upper d scharging position near the roof of the echamber, an endless CO1 veyor extending: longitudinally 01" saidsupplemental tram-e from a forward receiving position to an unloading;position at the rear end of said supplen'iental frame, and a chutepivoted at rear end to said supplemental -frame near the forward portionof said conveyor and having its forward end movable freely up and downto correspond With the elevation of the outer drum and rear Wall of saidhopper to remain inscraping relation with the rear wall of the hopperwhen the material is discharged from said hopper through saidcore-cutting mechanism along said chute onto said conveyor for transferto a mine car.

72. In a mining and loading machine, the combination with a main frame,01" a supple.- mental frame mounted on said main frame for lateralmovement of the forward por- 1. car, l on the forward end of nine forpivotal movernent on subs t ially horizontl axis housing adjacent suchaxis, (tus for said core-outing D o t nwsm- M lileciiiillihlll nit/UKSzllCl supplement comprising r actuating echan'ism enrol frame, meansting said hopp r to move the core tdlldl u c M11 i iny and reanvai-elysaid last-named means comprising adonal power transu issicn gearingenclosed oy saic housing, an endless conveyor one longi r' rally oi saidsupplements :i 'ieans for directing material hopper onto said conveyorwhen s or moves said core upwardly and reaiurardly.

78. In a inining and loading machine, the combination with coreutti g;mechanism of a fro Me for supporting said core-cutting mechanism forfeeding movement on a substantially horizontal axis means for operatingsa'd core-cutting mechanism including feeding movement thereof on suchaxis, said operating means comprising mechanism for locking; thecore-cutting mechanism against oodily movement rel irely to said framewhen the operation of said operating means is discontinued, a core scooppivotally mounted on said frame for movement on said axis independentlyof feeding movement of said core-cutting mechanism, an additionaloperating mechanism for moving said scoop upwa While said corecuttingmechanism is loclred against bodily movement, to remove the core fromits native position through said core-cutting mechanism and conveyormechanism mounted l ngitudinally of said frame for receiving thematerial of the core and conveyii the same to loading position.

F t. In a minin inacl e the combination -with an elon ated tr e oi asectional clnte mount y the forward section bm tal movement on a therear section of said chute for receiving core-cutting operatingapparatus being kwl

